FX5545 GXXX XXX PI
Vishay
Fully Integrated DC/DC Converter 0.9V to 6V, 4A with
570W/in3 Power Density, Efficiency up to 95%.
Simplified Lab assembly configuration for all models
FEATURES
• Specially designed for prototyping in Labs with limited
assembly equipment.
• Fully integrated DC/DC converter
• No external components required
• Buck or Boost configurations
• High efficiency over large load range
• 100% duty cycle
• Power density - more than 570W/inch3
• 1µA shutdown current
• 2.5V to 6V input range (1Li+ and 3-cell NiCd or NiMH cells)
• 0.9V to 6V output voltage
• Programmable PWM/PSM controls
• Low output ripple
• Standard socket construction or plug-in for prototype
(use BGA for production)
The DC/DC converter is a programmable topology
synchronized Buck or Boost converter for today’s continuous
changing electronic market. The DC/DC converter provides
flexibility of utilizing various battery configurations and
chemistries such as NiCd, NiMH, or Li+ with input voltage
range of 2.5V to 6V. An additional flexibility is provided with
topology programmability to power multiple loads such as
power amplifiers, microcontrollers, or baseband logic IC’s.
For ultra-high efficiency, converters are designed to operate
in synchronous rectified PWM mode under full load while
transforming into externally controlled pulse-skipping mode
(PSM) under light load.
• Temperature range: - 40°C to + 85°C
• Output power 15W
• Maximum continuous current 4A
APPLICATION
• Point of Load (POL) applications such as drivers for
FPGA’s, microprocessors, DSP’s, amplifiers, etc.
The DC/DC converter is available in 20-ports BGA package
for production. Convenient 8-pin plug-in modules are
available for prototyping. In order to satisfy the stringent
ambient temperature requirements, the DC/DC converter is
designed to handle the industrial temperature range of - 40°C
to + 85°C, with no cooling or derating
• Cordless phones, PDAs and others
• Supply voltage source for low-voltage chip sets
• Portable computers
• Battery back-up supplies
• Cameras
ORDERING INFORMATION
FX
5545
G
PI*
FUNCTION
SIZE
CIRCUIT IDENTIFIER
OUTPUT VOLTAGE-Example: 2.7V should be written as 2V7 as the V indicates the decimal point,
or ADJ for adjustable version - self selectable output voltage.
PLUG-IN VERSION
*PI is the abbreviation of Plug-In. When ordering please use an upper case i, not a lower case L.
For technical questions, contact FunctionPAK@vishay.com
For marketing questions, contact FunctionPAK.marketing@vishay.com
Document Number: 10130
Revision 25-May-04
www.vishay.com
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